What Causes Some Of The Internal Branch Leaves On A Juniper Shrub To Turn Rusty? Do These Leaves Need To Be Pruned?

Question

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Answer 1

There are many things that can cause this issue. Unfortunately, your photo did not come through, so I cannot assess the damage.

Mostly, overwatering, or disease will cause this. Junipers have few problems, but insects and disease from wet soils can take one down, pretty fast.

If you suspect diseased or wet soils, you could try a fungicide. This article will help:

https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

Junipers will appreciate drier soils. They don't tolerate wet feet, very well. Make sure that you do not water this tree. Even in drought, they can stand up with little to no harm, so less is more, here.

Here is an article that will help you to care for the shrub:

https://www.gardeningknowhow.com/ornamental/shrubs/juniper/care-of-junipers.htm